 //初始化盒子的宽度
function initBoxSize(){

	var screenWidth = screen.width;

	for(var i = 1 ; i <= 10 ; i++){
		var percent = i/10;
		var arr = $(".screenWidth" + i*10);
		for(var k = 0 ; arr.length != 0 && k < arr.length ; k++){
			$(arr[k]).css("width",screenWidth * percent);
		}
	}
}

//初始化盒子的宽度
initBoxSize();
